What’s Vulnerable › Vulnerabilities

CVE-2026-112148

• Severity: medium (CVSS 5.1 v4.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-20 · updated 2026-10-20
• Weakness: CWE-79

Description

A vulnerability has been identified in LIFF SDK versions 2.20.0 through 2.31.0, where a DOM-based cross-site scripting (XSS) flaw allows an attacker to execute arbitrary JavaScript in the origin of an affected LIFF application's endpoint when a user opens a specially crafted URL in an external browser, potentially leading to disclosure of JavaScript-accessible authentication tokens or application data, or unauthorized actions using the user's session.

Affected products

• LY Corporation LIFF SDK: from 2.20.0 before 2.31.1 — fixed in 2.31.1

How to fix

Upgrade to a fixed version: LY Corporation LIFF SDK 2.31.1. Check the vendor advisory for mitigations.

References

• https://github.com/line/liff/security/advisories/GHSA-wppr-qmp4-w627
• https://line.github.io/security-advisory-blog/CVE-2026-112148/

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